Ventilated bicycle helmet



FIG. 1 is a perspective view of a ventilated bicycle helmet showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a side elevational view, thereof, the opposite side being a mirror image of this view;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a ventilated bicycle helmet, as shown and described. 